Staple driving machine



(No Model.)

G. HAY.

STAPLE DRIVING MAGHINE.

No. 477,117. Patented June 14, 1892.

WITNESSES INYEIVTOR ATTORNEYS UNITED STATES PATENT OFFICE.

GILBERT IIAY, (1F MADISON, NEBRASKA, ASSIGNOR TO HIMSELF AND EDVARD JACOBS, OF SAME PLACE.

STAPLE-DRIVING MACHIN E.

SPECIFICATION forming part of Letters Patent No. 477,1 17, dated June 14, 1892.

Application filed November 5, 1891. Serial No. 410,997. (No model.)

To all whom it may concern.-

Be it known that l, GILBERT HAY, of Madison, in the eountyof Madison and State of Nebraska, have invented a new and improved Seam-Fastener, of which the following is a full, clear, and exact description.

My invention relates to improvements in seam-fasteners such as are used for forcing metallic staples through a seam; and the ob ject of my invention is to produce a simple, efficient, and rapid-working seam-fastener, and more especially to improve the feeding mechanism of the machine, so that the staples may be fed one by one and held in a suitable position for driving. The machine is also especially intended for setting staples in leather goods for the purpose of securing seams.

Prior to my invention seams have usually been secured by riveting. By my improved machine the staples may be easily and quickly set for the purpose of securingthe seams in a more rapid and effective manner than has hitherto been possible.

To this end my invention consists in certain features of construction and combinations of parts, as will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings,forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the views.

Figure 1 is a broken side elevation of the machine with the feeding mechanism shown in vertical section. Fig 2 is a broken front View of the machine with the staple-raceway removed, and Fig. 3 is a sectional plan on the line 3 3 in Fig. 1.

The machine is provided with the usual form of hollow standard 10, which forms the frame of the machine, and this standard is provided near the top with a forwardly-cw tending horizontal arm 11, which terminates in the clinching-anvil 12, having a recessed upper surface, as shown at 13, to provide for the easy clinching of the staples. Above the arm 11 is an arm 14, which projects from the top of the standard and aligns vertically with the arm 11, and this arm 1% terminates atits front end in a head 15, which supports the feeding and driving mechanism of the ma chine. On the top of the arm 14 is a lug 16, to which a walking-beam 17 is centrally pivoted, and in the rear of this lug is aguide 18, in which the rear end of the walking-beam moves, and this rear end of the walking-beam is pivoted to a connecting-rod 19, which may be operated by any convenient foot or power mechanism, so as to move vertically. The front end of the walking-beam 17 is pivoted to a head 20, having a plunger 21 secured to the under side thereof, which plunger moves vertically in a slideway 22, carried by the head 15. The slideway 22 has a longitudinal slot 23 in the front side to receive a guide-pin 21 on the plunger 21, and the slideway has also an opening 25 near the bottom to provide for proper connection with the staple-raceway, as described below. The plunger is normally pressed upward by a spring 25, which encircles it above the head 15, and the head 20 of the plunger has a forwardly-extendiug tripping-arm 27 secured thereto, which arm has an inwardly-bent lower end 28, adapted to operate in connection with the staple-feed, as described below.

A raceway 29 extends diagonally upward and forward from the opening 25 in the slideway 22, and this raceway may connect with any suitable receptacleholding staples. The raceway is of a width to provide for the staples sliding through it one at a time, and on the front side of the raceway. is a flat spring 30, having a stud 31 at its lower end, which stud projects transversely through the raceway and checks the flow of staples through it. Immediately below this stud 31 is a plunger 32, which is arranged parallel therewith and which projects from the opposite side of the raceway, so as to extend into the path of the tripping-arm 27, and the plunger 32 is held in a suitable keeper 33, and is normally pressed outward by a spring.

It will be seen that the lower staple of the stream of staples which runs through the raceway will be caught on the stud 31, and when the driving-plunger 21 descends the bent end 28 of the tripping-arm, striking the outer end of the plunger 32, will push the plunger inward, and the inner end of the plunger will engage the lower free end of the fiat spring 30, thus pushing the spring outward and permitting the lower staple to pass the stud 31 and rest upon the plunger 32. Vhen the driving-plunger 21 ascends, the plunger 32 springs back to its normal position, thus permitting the staple to pass down through the raceway and into the slideway 22, and the return of the spring 30 and stud 31 prevents more than one staple from passing through. At the lower end of the slideway 22 and below its junction with the raceway 29 is an arm 34, having a weight 34 at its outer end, and this arm extends forward from the slideway, being pivoted in lugs 35 thereon, and on the inner end of the arm is a projecting finger 36, wluch enters the slideway through a vertical slot therein, and which thus supports a staple 37, as shown in Figs. 1 and 2.

The operation of the machine is as follows: The seam to be fastened is placed upon the clinching-anvil 12, and will thus be beneath the plunger 21, which aligns vertically with the anvil. The plunger is then forced downward, and, striking the staple 37, which is held on the finger 36 of the arm 34, drives the staple through the seam and clinches it. The downward movement of the driving-plunger tilts the arm 34, and when the plunger returns to its upper position the weight 34 causes the arm 34 to return to its normal position, and a staple is fed through the raceway 29 and upon the finger 36 of the arm, ready for another operation, the staple being fed in the manner already described.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination, with the vertical slideway and the plunger reciprocating therein and provided at its upper end with a downward-extending arm 27 28, of the inclined raceway communicating with the lower end of the slideway, a plate-spring 30,having astoplug 31 between its ends entering the raceway from itslower side,and aspring-retracted plun: ger 32 in the path of the lower end of arm 27 2S and entering the raceway from its upper side at a point opposite the lower end of the plate-spring to push said spring and its lug outward to release a staple, the said plunger then receiving the staple and in turn releasing it when moved outward, substantially as set forth.

2. A staple-setting machine consisting of a standard provided with horizontal arms 11 14, a clinching-anvil on arm 11, a vertical slideway thereover on the arm 1t,a vertical plunger 21 in the slideway, operating mechanism therefor, the depending arm 27 28, secured to the upper end of the plunger, the inclined raceway 29, communicating with the slideway below the lower end of the plunger 21, a plate-spring30, provided betweenits ends with a stop-lug 31, entering the lower side of the raceway, a spring-retracted plunger 32 in the path of the arm 27 28 and entering the race way below lug 31 and opposite the lower end of the spring to push the latter outward, and the vertically-swinging gravity-lever 34, pivoted between its ends, having a point at the end of its short arm entering the slideway below the raceway directly in the path of the plunger 21 and weighted at its outer end, substantially as set forth.

GILBERT HAY.

W'itnesses:

WILLIS MCBRIDE, PETER S. OLIN. 

